71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
|
|
* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
|
|
* The President and Fellows of Harvard College.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Code for probe/attach of lscreen to LAMEbus.
|
|
*/
|
|
#include <types.h>
|
|
#include <lib.h>
|
|
#include <lamebus/lamebus.h>
|
|
#include <lamebus/lscreen.h>
|
|
#include "autoconf.h"
|
|
|
|
/* Lowest revision we support */
|
|
#define LOW_VERSION 1
|
|
/* Highest revision we support */
|
|
#define HIGH_VERSION 1
|
|
|
|
struct lscreen_softc *
|
|
attach_lscreen_to_lamebus(int lscreenno, struct lamebus_softc *sc)
|
|
{
|
|
struct lscreen_softc *ls;
|
|
int slot = lamebus_probe(sc, LB_VENDOR_CS161, LBCS161_SCREEN,
|
|
LOW_VERSION, HIGH_VERSION);
|
|
if (slot < 0) {
|
|
/* Not found */
|
|
return NULL;
|
|
}
|
|
|
|
ls = kmalloc(sizeof(struct lscreen_softc));
|
|
if (ls==NULL) {
|
|
/* Out of memory */
|
|
return NULL;
|
|
}
|
|
|
|
/* Record what it's attached to */
|
|
ls->ls_busdata = sc;
|
|
ls->ls_buspos = slot;
|
|
|
|
/* Mark the slot in use and hook the interrupt */
|
|
lamebus_mark(sc, slot);
|
|
lamebus_attach_interrupt(sc, slot, ls, lscreen_irq);
|
|
|
|
return ls;
|
|
}
|